Is there a limit to the protection period of authorship rights
No.
"Copyright Law" Article 20 Author's The protection period of the right of authorship, the right of modification, and the right to protect the integrity of the work is not limited.
"Copyright Law"Article 21 of citizens' Works, their right to publish, Article 10, Paragraph 1, Item (5) to The protection period of the rights stipulated in Item (17) is the life of the author and fifty years after his death, ending on December 31 of the fiftieth year after the death of the author; in the case of a collaborative work, the period ends on the death of the last author to die. December 31st of the fiftieth year.
Legal persons or other organizationsFor work and copyright (excluding the right of authorship) owned by a legal person or other organization, the right to publish and the rights specified in Items (5) to (17) of Article 10, Paragraph 1 of this Law shall be protected for five years. Ten years ends on December 31, the fiftieth year after the work was first published. However, if the work has not been published within fifty years after the completion of its creation, this law will no longer protect it.
Film works and creations using methods similar to filmmaking For works and photographic works, the right to publish and the rights stipulated in Items (5) to (17) of Article 10, Paragraph 1 of this Law shall be protected for fifty years, ending on the fiftieth anniversary of the first publication of the work. On December 31 of the year, if the work has not been published within fifty years since its creation, this law will no longer protect it.
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